Wind-Induced Phenomenon in a Closed Water Area with Floating-Leaved Plant
In this study, in order to clarify wind-induced
phenomena, especially vertical mixing of density stratification in a
closed water area with floating-leaved plants, we conducted hydraulic
experiments on wind flow characteristics, wind wave characteristics,
entrainment phenomena and turbulent structure by using a wind tunnel
test tank and simulated floating-leaved plants. From the experimental
results of wind flow and wind wave characteristics, we quantified the
impact of the occupancy rate of the plants on their resistance
characteristics. From the experimental results of entrainment
phenomena, we defined the parameter that could explain the
magnitude of mixing between the density stratifications, and
quantified the impact of the occupancy rate on vertical mixing
between stratifications. From the experimental results of the turbulent
structure of the upper layer, we clarified the differences in small-scale
turbulence components at each occupancy rate and quantified the
impact of the occupancy rate on the turbulence characteristics. For a
summary of this study, we theoretically quantified wind-induced
entrainment phenomena in a closed water area with luxuriant growth
of floating-leaved plants. The results indicated that the impact of
luxuriant growth of floating-leaved plants in a closed water body
could be seen in the difference in small-scale fluid characteristics, and
these characteristics could be expressed using the small-scale
turbulent components.
[1] Mori, K., Tohara, Y. and Kato O "Experimental Research of Entrainment
Rate of Density Interface due to a Wind Induced Current" Transaction of
the Japanese society of irrigation, drainage and reclamation engineering.
1989, Vol. 144, pp.85-93
[2] Wu, J. "Wind-Induced Turbulent Entrainment Across a Stable Density
Interface", Journal of Fluid Mechanics, 1973, 61, pp. 275-287.
[3] Kit,E., Berent,E. and Vajda,M. "Vertical Mixing Induced by Wind and a
Rotating Screen in a Stratified Fluid in a Channel", Journal of Hydraulic
Research. 1980, 18, pp.35-58
[4] Ikushima, K. "Substance Production of Plant Community near Water",
Kyoritsu Publishing, Tokyo, 1974
[5] Shemdin,O.H. "Wind-Generated Current and Phase Speed of Wind
Waves". Journal of Physical Ocean, 1972, 2, pp.411-419
[6] Wu, J. "Wind-Induced Drift Currents". Journal of Fluid Mechanics, 1975,
68,pp.49-70
[7] Tsuruya, H. "Experimental Study of Wind Driven Currents in a
Wind-Wave Tank -Effect of Return Flow on Wind Driven Currents-",
Report of the Port and Harbor Research Institute, 1983, Vol.22, No.2,
pp.128-174
[8] Kraus, E.B. and Turner, J.S. "A One-Dimensional Model of the Seasonal
Thermocline The general theory and its consequences", Tellus, 1967, 19,
pp. 98-106
[9] Nakayama, T. and Nezu, I. "Turbulence Structure of Wind Water Waves",
Journal of Japan Society of Civil Engineering, 2000, No.642,Ôàí-50, pp.
45-56
[10] Takahashi, A. and Suga, A. "Entrainment Coefficient in the Salt-Water
Fresh-Water Stratification", Proceedings of Annual Conference of the
Japan Society of Civil Engineers, 1976, No.2, pp383-384
[11] Ura, M. "Variation of Density Interface and Entrainment Velocity
Induced by Wind Shear", Proceedings of Coastal Engineering. JSCE.
1983, Vol.30, pp.561-565
[1] Mori, K., Tohara, Y. and Kato O "Experimental Research of Entrainment
Rate of Density Interface due to a Wind Induced Current" Transaction of
the Japanese society of irrigation, drainage and reclamation engineering.
1989, Vol. 144, pp.85-93
[2] Wu, J. "Wind-Induced Turbulent Entrainment Across a Stable Density
Interface", Journal of Fluid Mechanics, 1973, 61, pp. 275-287.
[3] Kit,E., Berent,E. and Vajda,M. "Vertical Mixing Induced by Wind and a
Rotating Screen in a Stratified Fluid in a Channel", Journal of Hydraulic
Research. 1980, 18, pp.35-58
[4] Ikushima, K. "Substance Production of Plant Community near Water",
Kyoritsu Publishing, Tokyo, 1974
[5] Shemdin,O.H. "Wind-Generated Current and Phase Speed of Wind
Waves". Journal of Physical Ocean, 1972, 2, pp.411-419
[6] Wu, J. "Wind-Induced Drift Currents". Journal of Fluid Mechanics, 1975,
68,pp.49-70
[7] Tsuruya, H. "Experimental Study of Wind Driven Currents in a
Wind-Wave Tank -Effect of Return Flow on Wind Driven Currents-",
Report of the Port and Harbor Research Institute, 1983, Vol.22, No.2,
pp.128-174
[8] Kraus, E.B. and Turner, J.S. "A One-Dimensional Model of the Seasonal
Thermocline The general theory and its consequences", Tellus, 1967, 19,
pp. 98-106
[9] Nakayama, T. and Nezu, I. "Turbulence Structure of Wind Water Waves",
Journal of Japan Society of Civil Engineering, 2000, No.642,Ôàí-50, pp.
45-56
[10] Takahashi, A. and Suga, A. "Entrainment Coefficient in the Salt-Water
Fresh-Water Stratification", Proceedings of Annual Conference of the
Japan Society of Civil Engineers, 1976, No.2, pp383-384
[11] Ura, M. "Variation of Density Interface and Entrainment Velocity
Induced by Wind Shear", Proceedings of Coastal Engineering. JSCE.
1983, Vol.30, pp.561-565
@article{"International Journal of Biological, Life and Agricultural Sciences:50798", author = "Akinori Ozaki", title = "Wind-Induced Phenomenon in a Closed Water Area with Floating-Leaved Plant", abstract = "In this study, in order to clarify wind-induced
phenomena, especially vertical mixing of density stratification in a
closed water area with floating-leaved plants, we conducted hydraulic
experiments on wind flow characteristics, wind wave characteristics,
entrainment phenomena and turbulent structure by using a wind tunnel
test tank and simulated floating-leaved plants. From the experimental
results of wind flow and wind wave characteristics, we quantified the
impact of the occupancy rate of the plants on their resistance
characteristics. From the experimental results of entrainment
phenomena, we defined the parameter that could explain the
magnitude of mixing between the density stratifications, and
quantified the impact of the occupancy rate on vertical mixing
between stratifications. From the experimental results of the turbulent
structure of the upper layer, we clarified the differences in small-scale
turbulence components at each occupancy rate and quantified the
impact of the occupancy rate on the turbulence characteristics. For a
summary of this study, we theoretically quantified wind-induced
entrainment phenomena in a closed water area with luxuriant growth
of floating-leaved plants. The results indicated that the impact of
luxuriant growth of floating-leaved plants in a closed water body
could be seen in the difference in small-scale fluid characteristics, and
these characteristics could be expressed using the small-scale
turbulent components.", keywords = "Density Stratification, Floating-leaved Plant,
Wind-induced Entrainment Phenomenon, Turbulent Structure", volume = "4", number = "11", pages = "787-9", }